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Contour plowing or contour farming is the farming practice of plowing and/or planting across a slope following its elevation contour lines. These contour line furrows create a water break, reducing the formation of rills and gullies during heavy precipitation and allowing more time for the water to settle into the soil. [ 1 ]
Random contour plowing also becomes off contour but usually with the opposite effect on runoff, namely causing it to quickly run off ridges and concentrate in valleys. The limitations of the traditional system of soil conservation, with its "safe disposal" approach to farm water, was an important motivation to develop Keyline design.
Contour strip cropping employs a crop rotation system down a slope to minimize runoff and rain velocity. [1] It is used mainly on gentle slope gradients. The width of protective strips is often higher than that of the row crop strips, so they may effectively intercept runoff.
The manual round seed dibblar shaves off so much time when it comes to planting seeds.
Contour buffer strips used to retain soil and reduce erosion. A buffer strip is an area of land maintained in permanent vegetation that helps to control air quality , soil quality , and water quality , along with other environmental problems, dealing primarily on land that is used in agriculture .
Contour trenching (a.k.a., Continuous Contour Trench or CCT) [1] is an agricultural technique that can be easily applied in arid sub-Sahara areas to allow for water, and soil conservation, and to increase agricultural production.
Planting species that can tolerate saline conditions can be used to lower water tables and thus reduce the rate of capillary and evaporative enrichment of surface salts. Salt-tolerant plants include saltbush, a plant found in much of North America and in the Mediterranean regions of Europe.
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